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BaseRepresentation
bin11011001110011…
…01100010000001
3120220202001101001
431213031202001
5431431222344
634355012001
75442136132
oct1547154201
9526661331
10228382849
11107a09462
126459a001
13384141a6
142248dc89
15150b3ed4
hexd9cd881

228382849 has 2 divisors, whose sum is σ = 228382850. Its totient is φ = 228382848.

The previous prime is 228382829. The next prime is 228382853. The reversal of 228382849 is 948283822.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142635249 + 85747600 = 11943^2 + 9260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228382849 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228382799 and 228382808.

It is not a weakly prime, because it can be changed into another prime (228382829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114191424 + 114191425.

It is an arithmetic number, because the mean of its divisors is an integer number (114191425).

Almost surely, 2228382849 is an apocalyptic number.

It is an amenable number.

228382849 is a deficient number, since it is larger than the sum of its proper divisors (1).

228382849 is an equidigital number, since it uses as much as digits as its factorization.

228382849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 46.

The square root of 228382849 is about 15112.3409503624. The cubic root of 228382849 is about 611.2532230514.

The spelling of 228382849 in words is "two hundred twenty-eight million, three hundred eighty-two thousand, eight hundred forty-nine".